Geochemistry and geochronology of quartz diorite host rocks of the Liudaowaizi skarn copper deposit in Jilin Province,NE China |
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| Affiliation: | 1. MNR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing, 100037, China;2. Institute of Geological Survey of Jilin Province, Changchun, 130061, China;3. College of Earth Sciences, Jilin University, Changchun, 130061, China;1. Department of Geology, University of Madras, Guindy Campus, Chennai, 600025, India;2. Research Scientist, Water Research Center, Kuwait Institute for Scientific Research, Kuwait;3. Department of Earth Sciences,Annamalai University, Annamalai Nagar 608002, India;4. Isotope and Radiation Application Division, Bhabha Atomic Research Centre, Mumbai 400085, India;5. Department of Applied Geology, Faculty of Engineering and Science, Curtin University Malaysia, CDT 250, 98009 Miri, Sarawak, Malaysia;6. Jawaharlal Nehru University, New Delhi, India;1. Key Laboratory of Offshore Oil Exploration and Development of Guangdong Higher Education Institutes, Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Science, Sun Yat-sen University, Guangzhou 510275, China;2. School of Earth Science and Geological Engineering, Sun Yat-sen University, Guangzhou 510275, China;3. Department of Geology and Geoenvironment, Section of Economic Geology and Geochemistry, National University of Athens, Panepistimiopolis, Athens 15784, Greece;4. Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China;5. University of Chinese Academy of Sciences, Beijing 100049, China;6. Department of Mathematics and Geosciences, University of Trieste, Via Weiss 8, Trieste 34128, Italy;7. Foundation for Research and Technology-Hellas, Institute of Chemical Engineering Sciences (FORTH/ICE-HT), P.O. Box 1414, Rio-Patras GR-26504, Greece;8. Department of Mathematics and Geosciences, University of Trieste, 34127, Trieste, Italy;1. College of Earth Sciences, Jilin University, Changchun, 130061, China;2. Key Laboratory for Oil Shale and Paragenetic Energy Minerals, Jilin University, Changchun, 130061, China;3. Department of Earth and Planetary Sciences and MQMarine Research Centre, Macquarie University, North Ryde, NSW, 2109, Australia;4. Center of Oil and Gas Resources Survey, China Geological Survey, Beijing, 100083, China;1. State University of Campinas, Brazil;2. University of Brasília, Brazil;3. Natural History Museum – Leibniz Institute for Evolution and Biodiversity Science, Berlin, Germany;4. Federal University of Bahia, Brazil;5. University of São Paulo, Brazil;1. State Key Laboratory of Continental Dynamics and Shaanxi Key Laboratory of Early Life and Environments, Northwest University Museum, Northwest University, Xi''an, 710069, China;2. Shaanxi Institute of Geological Survey, Xi’an, 710054, China;3. Research Institute of Petroleum Exploration and Development, PetroChina, Beijing, 100083, China;4. School of Earth Sciences, Lanzhou University, Lanzhou, 730000, China |
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| Abstract: | The Liudaowaizi Cu deposit is located in the east of Jilin Province and represents one of the few known Early Jurassic skarn Cu deposits in NE China. Here, we present new whole-rock major and trace element, zircon U–Pb and Hf isotopic data of quartz diorite exposed in the Liudaowaizi skarn Cu deposit. The quartz diorite belongs to the calc-alkaline series, is enriched in some of the large-ion lithophile elements (LILE; e.g., Rb, Ba, Th, and K) and is depleted in high-field-strength elements (HFSE; e.g., Ta, Nb, and Ti). LA-ICP-MS dating of zircons from the quartz diorite in the deposit yielded ages of 196 ± 1 Ma that are interpreted to be the emplacement age of this intrusion. Positive εHf values (6.6–11.6) and young TDM2 (490–813 Ma) of the quartz diorite indicate that the parent magma was derived from the partial melting of a juvenile lower crust, and magmatism and Cu mineralization were possibly related to the subduction of the Paleo-Pacific Plate. |
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| Keywords: | Geochronology Hf isotope Skarn Cu deposit Liudaowaizi NE China |
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